There is little information on the reproductive biology of Beautiful Hummingbird. Breeding is reported in November, May, and July (Rowley 1984, Howell and Webb 1995). The female is responsible for the incubation. No details are known of their reproductive behavior.
Rowley (1984) reported a nest 2.4 m above the ground in a shrub. The nest was a compact cup attached to a branch with spider webs, with a lining of fine white plant down, and decorated on the outside with brown composite pappi, covered with a layer of spider webs. The nest measured: total depth, 25.8 mm; external diameter, 31.4 mm; internal diameter, 21.2 mm; depth of cup, 10.5 mm. The clutch is two; the eggs are white,